First, I made a three-minute DVD with pictures of her life put to music. Then we played a "Mom by the Numbers"-- Showcase Showdown Game. Basically I found about 12 questions that the answers were numbers about her life. Check out this website to look up facts about the year someone was born. IE, what was the cost of a home, cost of a car, average yearly wages, cost of a gallon of gas etc.
Then you can some personal questions like how many houses have they lived in, jobs have they had, doors at their house, pairs of shoes in their closet, etc. etc. Then you divide your group up into two teams and ask them these questions. The team that gets the closest without going over gets a point. And then at the end the team with the most points wins.
I also made a simple party favor out of moms favorite candy. I found a few boxes of these at the Dollar Store, and divided them into clear gift bags. (Kids are great at helping with this). Then I used the actual box of candy for the top. I cut them to fit over the bags, and then stapled a picture of my mom when she was 20 to it. Cute and easy. \